Equations Paper 4 Flashcards
1
Q
Wave velocity (m/s)
A
Wave velocity = frequency (Hz) * Wavelength (m)
2
Q
Energy
A
Energy = change in mass (kg) * speed of light 2 (squared)
3
Q
Energy (thermal energy)
A
Change in energy = mass * SHC * change in temperature
4
Q
Energy (kinetic)
A
E = 0.5 mv 2
5
Q
Energy (gravity)
A
E = mgh
6
Q
Energy (elastic)
A
E = 0.5 k x 2
7
Q
Work done
A
Work done= force * distance
8
Q
Work done (in terms of power)
A
Work done (kWh) = power (kW) * time (h)
9
Q
Velocity
A
V2 - u2 = 2 a d
